<metal:macro use-macro="commons/index/macros/main">
    <metal:macro fill-slot="body">
        <metal:macro use-macro="commons/message/macros/messages" />
        <div class="container">
            <form action="login" method="post">
                你的姓名<input name="name" value="" type="text" />
                <input name="submit" type="submit" value="提交"/>
            </form>
        </div>
    </metal:macro>
</metal:macro>